Train EV and hybrid vehicle technicians in high-voltage isolation, LOTO procedures, electrical measurements and fault diagnosis with the Lucas-Nuelle HV Trainer.
LOTO Trainer for HV Vehicles | Lucas-Nuelle
High-Voltage Isolation and Fault Diagnosis in Practice
Tuesday, September 8, 2026
Practice High-Voltage Safety Before Working on a Real Vehicle
Working on electric and hybrid vehicles requires technicians to safely isolate high-voltage systems before service or diagnostic work begins. In this video, Lucas-Nülle demonstrates how the LOTO Trainer for High-Voltage Vehicles gives students a controlled environment to practice high-voltage isolation, lockout/tagout procedures, electrical measurements, and safe recommissioning.
Learners can work through five common high-voltage disconnection methods and diagnose up to ten realistic workshop faults while using tools such as an insulation resistance tester and milliohmmeter. The trainer helps automotive and EV programs move students beyond theory by giving them repeated practice with the procedures and diagnostic skills required for high-voltage vehicle service.
Build the confidence and procedural discipline students need before they work around real high-voltage EV and hybrid vehicle systems.
Skills Demonstrated
- High-voltage system isolation
- Lockout/tagout procedures
- Verification of a de-energized system
- Insulation resistance testing
- Low-resistance measurement with a milliohmmeter
- Systematic fault diagnosis
- Safe recommissioning after service procedures
Prepare Students for Modern Automotive Service
The LOTO Trainer provides a practical bridge between classroom instruction and work on real electric and hybrid vehicles. It is well-suited for automotive technology, EV training, career and technical education, community college, and workforce-development programs preparing technicians for increasingly electrified vehicle systems.
